More Than 500 People Arrested After Refusing to Leave a Street in Central District

HONG KONG—Police arrested 511 people who refused to leave a street in the financial district Wednesday, a day after a huge crowd marched across the city to mark the anniversary of the city's handover to China by denouncing interference from Beijing and demanding democratic elections.

Those arrested were mostly students who had vowed to stay in the park in the city's Central district until 8 a.m. Police began clearing the park in the...